2. When a fixed amount of ideal gas goes through an isothermal expansion, a. its internal (thermal) energy does not change. b. the gas does no work. C. no heat enters or leaves the gas. d. its temperature must decrease. e. its pressure must increase. 3. In an isobaric process where the volume decreases, what are the signs for the heat absorbed by the gas, the work done on the gas and the change in internal energy of the gas? Qis +, W is +, and AU is + Qis +, W is -, and AU is 0 c. Q is +, W is 0, and AU is + d. Qis-, W is +, and AU is - a. b. 4. On a PV diagram, an a. Isochoric b. Adiabatic c. Isobaric d. Isothermal 5. In an adiabatic process, how does the first law of thermodynamics simplify? a. AU=Q+W b. AU=W c. W=-Q AU=Q d. process is represented by a vertical line. e. None of these 6. An ideal gas increases in temperature from 22°C to 42°C by two different processes. In one process, the temperature increases at constant volume, and in the other process the temperature increases at constant pressure. Which of the following statements about this gas are correct? (There may be more than one correct choice.) a. The temperature of the gas increases. The heat required to cause this temperature change is the same for both the constant-volume and the constant-pressure processes. b. More heat is required for the constant-pressure process than for the constant-volume process. The change in the internal (thermal) energy of the gas is the same for both the constant- volume and the constant-pressure processes. d. The root-mean-square (thermal) speed of the gas molecules increases more during the constant-volume process than during the constant-pressure process. and C. The Carnot cycle consists of a combination of a. Isobaric, isochoric b. Isochoric, adiabatic c. Isobaric, isothermal d. Adiabatic, isothermal processes. Tatarsso
2. When a fixed amount of ideal gas goes through an isothermal expansion, a. its internal (thermal) energy does not change. b. the gas does no work. C. no heat enters or leaves the gas. d. its temperature must decrease. e. its pressure must increase. 3. In an isobaric process where the volume decreases, what are the signs for the heat absorbed by the gas, the work done on the gas and the change in internal energy of the gas? Qis +, W is +, and AU is + Qis +, W is -, and AU is 0 c. Q is +, W is 0, and AU is + d. Qis-, W is +, and AU is - a. b. 4. On a PV diagram, an a. Isochoric b. Adiabatic c. Isobaric d. Isothermal 5. In an adiabatic process, how does the first law of thermodynamics simplify? a. AU=Q+W b. AU=W c. W=-Q AU=Q d. process is represented by a vertical line. e. None of these 6. An ideal gas increases in temperature from 22°C to 42°C by two different processes. In one process, the temperature increases at constant volume, and in the other process the temperature increases at constant pressure. Which of the following statements about this gas are correct? (There may be more than one correct choice.) a. The temperature of the gas increases. The heat required to cause this temperature change is the same for both the constant-volume and the constant-pressure processes. b. More heat is required for the constant-pressure process than for the constant-volume process. The change in the internal (thermal) energy of the gas is the same for both the constant- volume and the constant-pressure processes. d. The root-mean-square (thermal) speed of the gas molecules increases more during the constant-volume process than during the constant-pressure process. and C. The Carnot cycle consists of a combination of a. Isobaric, isochoric b. Isochoric, adiabatic c. Isobaric, isothermal d. Adiabatic, isothermal processes. Tatarsso
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Transcribed Image Text:2. When a fixed amount of ideal gas goes through an isothermal expansion,
a.
its internal (thermal) energy does not change.
b. the gas does no work.
C.
no heat enters or leaves the gas.
d. its temperature must decrease.
e.
its pressure must increase.
3. In an isobaric process where the volume decreases, what are the signs for the heat absorbed by the
gas, the work done on the gas and the change in internal energy of the gas?
Qis +, W is +, and AU is +
Qis +, W is -, and AU is 0
c.
Q is +, W is 0, and AU is +
d. Qis-, W is +, and AU is -
a.
b.
4. On a PV diagram, an
a. Isochoric
b. Adiabatic
c. Isobaric
d. Isothermal
5. In an adiabatic process, how does the first law of thermodynamics simplify?
a. AU=Q+W
b. AU=W
c. W=-Q
AU=Q
d.
process is represented by a vertical line.
e.
None of these
6. An ideal gas increases in temperature from 22°C to 42°C by two different processes. In one
process, the temperature increases at constant volume, and in the other process the temperature
increases at constant pressure. Which of the following statements about this gas are correct?
(There may be more than one correct choice.)
a.
The temperature of the gas increases. The heat required to cause this temperature change
is the same for both the constant-volume and the constant-pressure processes.
b.
More heat is required for the constant-pressure process than for the constant-volume
process.
The change in the internal (thermal) energy of the gas is the same for both the constant-
volume and the constant-pressure processes.
d.
The root-mean-square (thermal) speed of the gas molecules increases more during the
constant-volume process than during the constant-pressure process.
and
C.
The Carnot cycle consists of a combination of
a. Isobaric, isochoric
b.
Isochoric, adiabatic
c. Isobaric, isothermal
d. Adiabatic, isothermal
processes.
Tatarsso
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